2 files changed, 29 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 59537c7..35d0540 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ CC = cc
 CFLAGS = -std=c11 -Wall -Wextra -Wpedantic -g -O0
 LDFLAGS = 
 
-HDRS = 
+HDRS = mem.h
 SRCS = main.c
 OBJS = $(SRCS:.c=.o)
 TARGET = glacier
diff --git a/mem.h b/mem.h
new file mode 100644
index 0000000..032740c
--- /dev/null
+++ b/mem.h
@@ -0,0 +1,28 @@
+#ifndef MEM_H
+#define MEM_H
+
+#include <err.h>
+#include <stdlib.h>
+
+#define MALLOC(s)      xmalloc((s), __FILE__, __LINE__)
+#define REALLOC(p, s)  xrealloc((p), (s), __FILE__, __LINE__)
+
+static inline void *xmalloc(size_t s, const char *file, int line)
+{
+	void *p;
+
+	if (!(p = malloc(s)))
+		err(1, "%s:%d: malloc", file, line);
+	return p;
+}
+
+static inline void *xrealloc(void *ptr, size_t s, const char *file, int line)
+{
+	void *p;
+
+	if (!(p = realloc(ptr, s)))
+		err(1, "%s:%d: realloc", file, line);
+	return p;
+}
+
+#endif /* MEM_H */